Hydrodynamic installation having an electric drive for actuating a water protection

A hydrodynamic installation

• an upper water tank, a lower water tank, and a water way system which connects said upper water tank to said lower water tank and which includes a plurality of part-water ways;
• a hydraulic machine arranged in said water way system;
• a water protection arranged in a part-water way, said water protection including a movable protection panel mounted for movement between a first position, in which the part-water way is closed, and a second position, in which the part-water way is open;
• an electrically controllable locking unit for locking said protection panel and an electric drive having a drive train with an electric motor and a gear mechanism;
• said water protection being configured for movement into the closed position simply by a weight force, and said electric drive being configured for moving said water protection into the open position and the closed position;
• said drive train further including a spindle screw drive with a spindle, wherein the components of the drive train are arranged in the sequence mentioned so that, by operating said electric motor, said spindle is selectively retracted and extended in order to move said water protection into the open position and the closed position;
• wherein said locking unit is integrated in said electric drive and is constructed to block said drive train if an electrical control signal is applied, and to release said drive train if no electrical control signal is applied;
• and
• said electric drive further including a mechanical brake having an adjustable braking force and being configured to engage in said drive train in an inhibiting manner in order to adjust a closing time of said water protection, wherein said mechanical brake can act in an inhibiting manner on a position of said drive train located at a motor side of said gear mechanism.